Long and Martian Road: In August 2010, the Marshall Opportunity looked around and made a photo of its tracks on the sand of the Red Planet. This image has beautiful ripples of small dunes created by the wind, similar to those we have here on Earth. The opportunity took many epic shots, like this, as he cruise around Mars for 15 years. Now it's lost for us.
See more dunes: these crescent-shaped sand formations are called Barkhan dunes. From this photograph taken by the HiRISE Mars Reconnaissance Orbiter, scientists can say that the prevailing winds blow from east to west. The wind pushes fine grains of sand onto the slopes, creating ripples and making these captivating forms.
Opportunity is lost, but we have not done with Mars yet. Earlier this month, InSight Lander successfully placed a thermal wind and heat shield on its seismometer. NASA's Orchestra Mars Reconnaissance flew over its head and not only noticed the dark solar panels of the landing gear, but also a new shield ̵
Are you stunned by the star? This complicated photograph of the Galaxy Triangle, also known as Messier 33 or M33, uses 54 Hubble views. The actions of scientists determine 25 million stars, scattered here, from left to right, at a distance of approximately 14,500 light years. The M33 is a spiral galaxy similar to our own Milky Way, so astronomers study both of these spiral galaxies as proxies for our own.